tree c728ee71567e215185b9829f6ca6edfcee63bc02
parent 508383c4031abcc72f30537a016e6cdae2cc08b9
author Hsin-Yi Chen <hsinyichen@google.com> 1541495515 +0800
committer Hsin-Yi Chen <hsinyichen@google.com> 1542273531 +0000

Let header-abi-dumper declare unknown types automatically

When the compiler finds an unknown type, it queries ExternalSemaSource
for the declaration. If the type is not declared anywhere, the compiler
ignores the type name and sets the type to int.

To keep the type name in AST, this commit adds FakeDeclSource that
creates declarations for the unknown types.

Test: header-abi-dumper test.h -o test.txt -suppress-errors -dump-function-declarations -- -x c++
Bug: 117582158
Change-Id: I2d49b7a4f9e2a991224e6702938bc63744bba039